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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: Environ Res. 2017 Apr 26;156:579–587. doi: 10.1016/j.envres.2017.03.048

Table 1.

Demographic and lifestyle characteristics.

Characteristic Full
Populatio
n
(n=406)
Tobacco
Smoke-
Unexpose
d* (n=146)
Tobacco
Smoke-
Exposed
**
(n=247)
Age in years <35 143 (35) 40 (27) 96 (39)
35–50 147 (36) 58 (40) 86 (35)
>50 115 (28) 48 (33) 65 (26)
Sex Male 306 (75) 106 (73) 194 (79)
Female 100 (25) 40 (27) 53 (21)
Race White 195 (48) 68 (47) 122 (49)
Black 178 (44) 61 (42) 110 (45)
Other 32 (8) 17 (12) 15 (6)
Body Mass Index (kg/m2) Underweight (17.3–18.5) 6 (1) 0 (0) 6 (2)
Normal weight (18.5–24.9) 73 (18) 19 (13) 51 (21)
Overweight (25.0–29.9) 132 (33) 45 (31) 82 (34)
Obese (29.9–52.1) 191 (48) 81 (56) 105 (43)
Highest educational attainment Less than high school or equivalent 102 (25) 34 (23) 64 (26)
High school diploma or GED 159 (39) 48 (33) 106 (43)
Some college or 2 year degree 106 (26) 42 (29) 62 (25)
4 year college graduate 38 (9) 22 (15) 15 (6)
Annual household income Less than $20,000 161 (42) 51 (38) 101 (42)
$20,001 to $50,000 130 (34) 41 (30) 89 (37)
More than 50,000 95 (25) 44 (32) 48 (20)
Cigarette smoking status Not current smoker 266 (66) 146 (100) 108 (44)
Current smoker, fewer than 10 cigarettes per day 75 (19) 0 (0) 75 (31)
Current smoker, 10 or more cigarettes per day 61 (15) 0 (0) 61 (25)
Daily passive smoke exposure Fewer than 30 minutes 262 (66) 146 (100) 107 (43)
30 minutes or more 140 (34) 0 (0) 140 (57)
Alcohol consumption Not current drinker 125 (32) 47 (34) 74 (31)
Currently drinks less than 7 drinks per week 199 (52) 71 (51) 120 (51)
Currently drinks 7 or more drinks per week 62 (16) 20 (14) 42 (18)
*

Tobacco smoke-unexposed participants reported no primary tobacco use, less than 30 minutes of passive smoke exposure, and had blood 2,5-DMF concentrations less than 14 ng/L.

**

Tobacco smoke-exposed participants reported primary tobacco use, 30 or more minutes of passive smoke exposure, or had blood 2,5-DMF concentrations greater than or equal to 14 ng/L.